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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/**
 * @test
 * @bug 8332245
 * @summary C2: missing record_for_ign() call in GraphKit::must_be_not_null()
 *
 * @modules java.base/jdk.internal.misc
 * @library /test/lib /
 * @run driver compiler.c2.irTests.TestBackToBackMustBeNotNull
 */

package compiler.c2.irTests;
import jdk.internal.misc.Unsafe;
import java.lang.reflect.Field;
import compiler.lib.ir_framework.*;


public class TestBackToBackMustBeNotNull {
    static final jdk.internal.misc.Unsafe UNSAFE = Unsafe.getUnsafe();
    static final long F_OFFSET;
    private static A fieldA = new A();

    static {
        try {
            Field fField = A.class.getDeclaredField("f");
            F_OFFSET = UNSAFE.objectFieldOffset(fField);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    static public void main(String[] args) {
        TestFramework.runWithFlags("--add-modules", "java.base", "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED");
    }

    @Test
    @IR(phase = { CompilePhase.ITER_GVN1 }, counts = { IRNode.IF, "1" })
    private static void test1() {
        final Object o1 = UNSAFE.getReference(fieldA, F_OFFSET);
        final Object o2 = UNSAFE.getReference(fieldA, F_OFFSET);
        notInlined(o1, o2);
    }

    @DontInline
    private static void notInlined(Object o1, Object o2) {

    }

    static class A {
        Object f;
    }
}